Location data · Lower Saxony
Sun hours in Braunschweig
How sunny is Braunschweig? Over a year the sun delivers 1,300 kilowatt-hours onto every square metre here — in June roughly 5 times as much per day as in December. “Sun hours” has two meanings: the weather report counts how long the sun shines. For solar power what matters is how much energy arrives — and that is what this page shows, as peak sun hours (hours of full sun power).
For solar planning this means: an optimally tilted, south-facing array (35°) harvests an annual average of 3.56 peak sun hours per day in Braunschweig. In 9 out of 10 years at least 1,203 kWh/m² are reached. All values are computed from this location’s satellite hourly data, not estimated.
- Annual average (PSH)
- 3.56 kWh/m²/d
- P90 annual total
- 1,203 kWh/m²
- Optimal tilt
- 40°
- Terrain horizon max.
- 1.1°
Sun hours per month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PSH/day (35° south) | 1.18 | 2.11 | 3.44 | 4.99 | 5.28 | 5.68 | 5.45 | 4.96 | 4.21 | 2.79 | 1.50 | 1.06 |
| P90 | 0.92 | 1.57 | 2.71 | 4.24 | 4.65 | 5.10 | 4.85 | 4.35 | 3.64 | 2.14 | 1.16 | 0.84 |
Daily average per month in kWh/m² at 35° tilt, south-facing, including the terrain horizon of Braunschweig. P90 = reached in 9 out of 10 years.
Optimal tilt angle in Braunschweig
The annual optimum for Braunschweig is 40° south; anything between 25° and 51° counts as equivalent (below 2% difference). For winter operation (off-grid) 65° is optimal, for summer use 20°. Flat-laid modules lose 15.6 % versus the optimum. Adjusting twice a year would add 2.7 % here, monthly adjustment 3.6 % — only relevant for adjustable mounts.
Is a balcony solar kit worth it in Braunschweig?
A vertical south-facing railing in Braunschweig harvests 940 kWh/m² per year — 72 % of what an optimally tilted 35° panel yields at the same spot. December softens the penalty: with the low winter sun, the vertical plane reaches 119 % of the 35° December value, computed from the same hourly data with its own plane transposition. Open the balcony solar calculator with these coordinates →